Venous Blood Gases
Heparinized syringe, Green top (lithium heparin)
0.5 mL syringe or 4 mL green top - must be full
Cause for rejection:
Clotted, Specimen not sent on ice, air bubbles
Sample collected in microtainer will not be accepted
Daily, 24 hours; STAT
Ion selective electrode/Calculations
Notify lab if patient's temperature is other than 37C to correct results which are temperature dependent. Place specimen on ice and deliver to laboratory immediately.
OC Power Word:
Reference range is available on patient report.
Total Hgb, pH, PCO2, pO2, HCO3, Tco2, O2 Saturation, O2 hgb, Std Base Excess